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Amethyst
Amethyst

Scorzalite
Scorzalite



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Amethyst
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Scorzalite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2
 
-
-
-
3.31
Uneven
{110} Good
5.5-6
(Fe2+ ,Mg)Al 2(PO 4) 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)